Electrical signaling device for railroads.



N 856,094. PATENTED JUNE 4, 1907;

E. I-UOROUTT.

ELEUTRIOAL slemmw DEVICE FOR RAILROADS.

APILIOATION FILED 061213, 1905. RENEWED SEPT.]., 1906.

wnmzsssa Unrrnn STATES PAT N onn on,

EDWARD L. ORCUTT, :oF YORK, N. Y.,' ASSIGNOR To RAILWAY SAFETY SIGN L COMPANY, wA CORPORATION or NEW JERSEY.

ELECTRICAL SIGNALING DEVICE FOR QAILROADS.

are. 856,094.

Specification of Letters Patent.

' Patented June 4, 1907.

A li ti filed October 13.1905. Renewed September 1, 1906. Serial No. 382,996.

To all whom it may concern.-

Be it known that I, EDWARD L. ORoU'rr, a cit zen of the United'States, and a resident of New York city, in the county and State of New York, have mvented certain new and useful Improvements in Electrical Signaling Devices for Railroads, of which the following is a specification.

This invention're'lates to electric signaling systems for railwa s.

It seeks to provi e an efficient, economical and reliable system and also one in which both track signals-arranged in blocks along the track, and also" cab ortrain signals carried on the train may be utilized.

The invention also seeks to provide an efficientrel'l'able and economical arrangement by. means of which the brakes may be ap-- plied-to stop the train when the block about part of this specification, and in which" like,

'toz-be entered is dangerous or occupied by a preceding train.

In the accompanying drawings formingnumerals indicate corresponding parts in the several figures; Figure 1 is a diagram lembodying the invention and showing a single track signal for the block; Fig. 2 is a similar view showing a plurality of track signals for 'a block and associated means on the train for stopping the train and Fig. 3 is a diagrammaticrepresentative of a rotary transformer or motor dynamo which may be used in place of the stationary transformer shown r in Figs. 1 and 2. 3S

Referring now to the drawings and more particularly to Fig. 1, the track is divided into blocks of which rails l and 2 belong to the first block, rails 1 and 3 belong to the second block, and rails 1 and 4 belong. to the 'third block. Rails 2, 3, 4, etc. are insulated from each other. Rail'l may, as shown, be electrically continuous through the several blocks. 5 and 6 are two separate track contacts associated with the block to which rails 1 and 3 belong. These track contacts 5 and 6 consist of suitable electric conductors which extend along the track for a suitable distance in advance of the block to which they belong. They are preferably formed of rails fixed on the road bed. At

" the opposite end of the block is transformer 10, whose secondary coil 11 is connected by lwire 14 to rail 3 and. by wires 12 and 13-t 0 "rail 1. Primary coil 15 of transformer 10 is signal capable of shunt and lamp 22 is cut. out.

connected by wire 17 to wire 13 and is connected'by wire 16 to track contact 6. Track be operated from any convenient source, but

preferably from a source of electricity located on the train. As shown'in the drawings, this signal consists of two lamps. One lam lights up to'show that the guarded block 1s dangerous, as for example when a train is occupying this block. The other lamp lights up to show that the guarded block is.

safe, asifor example when there is no trainin 7 this block. As shown in the accompanying drawings, the signal consists of these danger and safety lamps and is operated from .the supply circuit for the transformer, said supply circuit including the track contact 6,' wire 16, primary coil of transformer 10, andtype of rail 1. Armature 19 of magnet 8 is connected by wire 18 to wire 16.

wire 24 and includes lamp 22. Front contact 26 is connected by wires 27 and 29 to wire 24 and includes lamp 28. connected to rail '1. Thus lamps 22 and 28 are arranged to be connected alternately in a shunt or bridge across the supply circuit. WVhen magnet 8 is deenergized and armature 19 is retracted'by its spring 25, the shunt-is closed through lamp 22. hen, however,

- 1nagnet8 is energized, the armature 19 moves over to contact 26, lamp 28 is included in the ferred arrangement of the system", the generator for the supply circuit is carriedon the train. Any suitable type of generator may be employed. train. One side of this generator is connected by Wires 31 and 51 to a traveling contact 50, carried by the train. This traveling contact, as the. train advances, is arranged to opposite side of the generator is connected by wires.27 and 53'to a traveling-contact 52- ar- Back con-j --tact 20 is connected by wires 21 and/23m WVire 24 is" In the pre-' 30 is the generator on the make connection with track contact 6. The

ranged to. travel in electric connection with rail 1. 1 When the train reaches contact 6, the supply circuit for transformer is com;-

pleted as followsfrom generator through wires 31 and 51, traveling contact 50, track contact 6, Wire 16, primary coil 15, Wires 17 and 13, rail 1, traveling contact 52, and wires 53 and,37, back to generator 30. This circuit, of course, energizes secondary coil 11 of the transformenthereby energizing magis energized the lamp 42 will be lighted to in 'dicate safety, and when this magnet is den.

ergized the lamp 47 will be lighted to indica'te danger. Magnet is connected on one side by Wire 34 to traveling contact 33 carried on the train, and is connected onits other side by wires 36 and 53 to traveling contact 52. Traveling contact 33 isarranged to make electric connection with trackcontact 5., When the train reaches track contact 5, magnet 35 isconnected in the trackcircuit as follows'fro1n magnet 35 through wire 34, traveling contact 33, track contact 5, wire 7', magnet 8, rail 3, secondary coil 11 of transformer 10, rail 1, traveling contact.52 and wires 53 and 36 to magnet 35'. It will be seen that magnets 35 and 8 which control,'respectively, the train-signal and the track signal, are arranged in series. If, at

this time, the primary coil of the transformer is energized and there is no train in the block, magnet 35 will be energized and will cause'the safety lamp 42 to light up. If, however, primary coil '13 is energized and a train is occupying 'the block, and thereby shunting the current in the track circuit, magnet 35 will be denergized and danger lamp 47 will light up. The circuit for these lamps will be presently explained. 39 is the armature of magnet35 and'is connected by wire 38 to one side'of the generator 30. Back contact 46 is connected by wires 48 and 49 to' Wire 45 and includes lamps 47. Front con tact 40 is connected by wires 43 and 44 to wire 45 and includes lamp 42. Wire 45 1s connected by Wires 36 and 3,7 to the opposite.

side of generator 30; The spring 41 holds-its armature39 on the back contact 46 when magnet -'35 is notenergized. The generatoris designed to be continuously active so as to-' light up either lamp 42 or 47 depending upon the condition ofjmagnet 35. W 1re 34 is connected to back stop 32 of the traveling con tact 33. This traveling contact .33, when it makes connection with the-stationary contact 5 opens the connection with back stop 32. At other-times, the spring of this travelin'g contact keeps the connection with back tor.

thereupon lights-up to show safety.

Before'the train reaches track contact 5, the magnet35 is energized from generator 30' bythe followi circuit' from' generator 30, wire 31, bac stop 3 2,contact33, wire 34-, magnet 35, wires 36 and.37, back to genera:

The operation of the system is as.follows Before the train reaches the track contacts 5 and 6, the local train circuit through magnet 35, just above traced, ener 'zes the magnet and closes the circuitthroug lamp 42, which s a white lamp and gives a'safety indication. When the train reaches track contacts 5 and Y 6, traveling contact 50 makes, connection with track contact 6 therebyconnecting generator 30 with the supply-circuit, as heretofore traced. -Tl1l S. CIIOH1t operates transformer 10 and energizes the track circuit which has just been completed by the connection established between contacts 33 and 5. This circuit has been traced above. This energizes magnet '8 which thereb cuts out lamp 22 and cuts in lamp 28, which latter It also energizes-ma net 35Azlierby cutting out danger lamp 47 om connection with generator 30 and cutting in safety lamp '42, which latter thereupon lights up. When traveling contact-33 made connection with track contact 5,-it'brokezat back stop 32 the'local train circuit through magnet 35 heretofore traced so that said magnet 35 became thereupon de-' pendent for its energization upon the. track circuit. the block,,-the track magnet Swill be deener- If, at thistime,-a train is'occupying gized thereby causing track lamp 22. to light up to indicate danger. The presence of the. train in .the block also prevents magnet '35 from being energized by the track circuit so that armature 39'cutsout safety lamp 42 and" cutsin danger lamp- 47 causing the tter to lightup.

The resistance of-the variou'sfiamps and magnets, especially those onthe train, can. be adjusted in a way so as to secure the best results. I In Fig. 2 are-shown three track-signals, each consistingof a danger and safety lamp. The danger lamps 22 are'connecte'din multi-- ple by wires'2'1' and 23 to back contact 20 on one side-and to wire 24 on the other side.

The safety lamps 28 are connected in multi- {$2. ple by wires .27 and 29- to front contact '26 on one side and to wire 25'on-the other side.

Each pair of danger and safety lamps 2 2 and 28 constitutes asignal. In '{Figs 2,;60,is1a;.

magnet carried on the train' and connected by wires 61 and 62, respectively, to contact 40 on one side and to wire 36 on the other side. i The armature 59 of this magnet is connected by link-58 to lever '56 fulcrumed at 57 and opera a. valve 54 in fluid pressure pipe 55. This uid pressure'pipe may con trolor operate a Whistle, or other signal, or

i '65 stop 32 closed as "shown in the'drawings. I serve to apply the brakes. Magnet 61 is energized concurrently with; safety lamp 42.

. When magnet 35 is deenergizeda'nd lamp 47 lights up to indicate danger, magnet is deenergized, its armature is retracted by spring '63 thereby operating valve 54 to apply the v brakes or blow the Whistle, as desired.

In Fig. 3 is shown a diagram of a rotary transformer or 'moto-rrdynamo' 64. This may be substituted for the stationary transformer 10 shown in Fi s. 1 and 2, in which case wires 12, 13, 14 and 17 will be connected in the track circuit and inthe supply circuit -1n substantially thesame way as-s own in F i gs. '1 and 2. s It is to be understood that the various features of the invention may be modified and combined in different ways without depart mg from the substance of the invention. 7

What I claim and desire .to securebyLet:

ters'Patent is 1. In an electric signaling system, the comblnation of a track circuit including a transformer, both rails of the track, a mag- 'net and a track contact, said magnet and trackcontact being arranged'in series; a supply c1rcu1t for the transformer; agenerator for the supply circuit; a track signal con-' trolled by'said'magnet of'the track circuit; a signal on a tram; a magnet on said train controlling the train signal; contacts on said train connected with said magnet on the train and arranged to make connection with said train connected with said magnet on the train and arranged to make connection withsaid track contact and one rail of the track.

3. In an electric signaling system, the combination of a track circuit. including a transformer, bothrails of the track, a magnet and a track contact, said magnet and track contact being arranged in series; a supply circuit for thetransformer: a generator on a tram for the supply circuit: a track signal controlled by said magnet of the track circuit; a slgnal on said train; a magnet on sald train controlling the train signal; contacts on said train connected with said magnet" on the train and arranged to make connection with said track contact and-ions; rail of the track.

4. In an electric sigi ling system, the combination of a track circuit including a transformer, both rails ofthe track, a magnet and a track contact, saidniagnet and track contact being arranged in series; anupply circuit for the transformer; a gerierat or an a train for the supply circuit; a plurality; of

track signals controlled by said magnet of the track circuit; a signal on said train; a magnet on said train controlling the train .signalf contacts on saidtrain connectedwith said magnet on the train and arranged to makeconnection with said track-contact and one rail of the track.

.5, In an electric signaling system, the combination, of a track circuit including a transformer, both rails of the track, a magnet and a track contact, said magnet. and track contact being arranged in series; a supply circuit for the transformer; a generator for the supply circuit; a track signal con trolled by. said-magnet of the track circuit and operate'dby the current in the supply circuit; a signal on a'train; a magnet on said train controlling the train signal; contact-s on said train connected with said magnet on the train and arranged to make connection with said "track contact and one rail of the track.

v6. In an electric signaling system, the combination of a track circuit'including a transformer, both rails of the track, a magnet and a track contact, said magnet "and track contact being arran ed in series; a supply circuit for the trans ormer; a generator for the supply circuit; a plurality oftrack sig nals controlled by said magnet of the. track circuit and operated by the current in the supply circuit; a signal on .a train; a magnet on said train controlling the train signal; contacts on said train connected with said magnet on the train and arranged to make lconnectionwit h said track contact and one rail of the track.

7 z In an electric signaling system, the combination of a track circuit; including atransformer, both rails of the track, a magnetand a track contact, said magnet and track contact being arrangedin series; a supply c1rcu1t for the transformer; a generator on a train for the supply circuit; a track signal controlled by said magnet of the track circuit and operated by the current inthe supply circuit; a signal on said train a magnet on said train controlling the train signal;

contacts on said train connected with'said magnet on the train and arranged to make contact andone 1 connection with said track rail of the track.

' -8. In an electric signaling system, the' combination of a track circuit including a.

transformer, both rails of the track, a magnet and a. track contact, said magnet and track I contact being arrangedin series; a supply circuit for the transformer; a generator on a I train for the supply circuit; a plurality of track frsi'g nals cont-rolled by said magnet. of the traokcircuit and operated by the current in the 'ys'upply circuit; a signal on said .train';

'amagnet onsaid train controlling the train signal; cont-acts on said train connected with said magnet on the train and arranged to make connection with said track contact and one rail of the track.

9; In an electric signaling system for railelectric lamps controlled bysaid track mago net; a signal on a train; amagnet on said train controlling said train signal; a supply circuit for the transformer; a generator for the suppl'ycircuit; contacts on said train connected with said train magnet and arranged 5 to -make connection withs'aid track contact and one rail of the track, whereby said track magnet and said'train magnet will be connected in series for controlling the track and train signals; and a brake applying device on 20 said train controlled by said track circuit.

: '10. In an electric signaling system for rail ways, the combination of a track circuit in:

cluding atransformer, a track magnet. both rails of the track, and a track contact, said a track magnet and track contact being an 25 ranged in series; a signal on atrain; a brakeapplying device onsaid train; a magnet on said train controlling said train signal and brake applying device; a supply circuit for the transformer; a generator onsaid train 0 for the supply circuit; a track signal operated by the'supply circuit and controlled by said 

